*/
package org.opendaylight.yangtools.yang.model.util.type;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
import com.google.common.base.Preconditions;
-import java.util.Collection;
+import com.google.common.base.Verify;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableRangeSet;
+import com.google.common.collect.ImmutableRangeSet.Builder;
+import com.google.common.collect.Range;
+import com.google.common.collect.RangeSet;
+import java.util.ArrayList;
import java.util.List;
-import javax.annotation.Nonnull;
+import java.util.function.Function;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.yangtools.yang.model.api.ConstraintMetaDefinition;
import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.stmt.UnresolvedNumber;
+import org.opendaylight.yangtools.yang.model.api.stmt.ValueRange;
import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
+import org.opendaylight.yangtools.yang.model.api.type.RangeRestrictedTypeDefinition;
-public abstract class RangeRestrictedTypeBuilder<T extends TypeDefinition<T>> extends AbstractRestrictedTypeBuilder<T> {
- private Collection<RangeConstraint> rangeAlternatives;
+public abstract class RangeRestrictedTypeBuilder<T extends RangeRestrictedTypeDefinition<T, N>,
+ N extends Number & Comparable<N>> extends AbstractRestrictedTypeBuilder<T> {
+ private ConstraintMetaDefinition constraint;
+ private List<ValueRange> ranges;
RangeRestrictedTypeBuilder(final T baseType, final SchemaPath path) {
- super(Preconditions.checkNotNull(baseType), path);
+ super(baseType, path);
}
- public void setRangeAlternatives(@Nonnull final Collection<RangeConstraint> rangeAlternatives) {
- Preconditions.checkState(this.rangeAlternatives == null, "Range alternatives already defined as %s",
- this.rangeAlternatives);
- this.rangeAlternatives = Preconditions.checkNotNull(rangeAlternatives);
+ @SuppressWarnings("checkstyle:hiddenField")
+ public final void setRangeConstraint(final @NonNull ConstraintMetaDefinition constraint,
+ final @NonNull List<ValueRange> ranges) {
+ checkState(this.ranges == null, "Range constraint already defined as %s %s", this.ranges, this.constraint);
+
+ this.constraint = requireNonNull(constraint);
+ this.ranges = ImmutableList.copyOf(ranges);
touch();
}
- final List<RangeConstraint> calculateRangeConstraints(final List<RangeConstraint> baseRangeConstraints) {
- if (rangeAlternatives == null || rangeAlternatives.isEmpty()) {
- return baseRangeConstraints;
+ final RangeConstraint<N> calculateRangeConstraint(final RangeConstraint<N> baseRangeConstraint) {
+ if (ranges == null) {
+ return baseRangeConstraint;
+ }
+
+ // Run through alternatives and resolve them against the base type
+ final RangeSet<N> baseRangeSet = baseRangeConstraint.getAllowedRanges();
+ Verify.verify(!baseRangeSet.isEmpty(), "Base type %s does not define constraints", getBaseType());
+
+ final Range<N> baseRange = baseRangeSet.span();
+ final List<ValueRange> resolvedRanges = ensureResolvedRanges(ranges, baseRange);
+
+ // Next up, ensure the of boundaries match base constraints
+ final RangeSet<N> typedRanges = ensureTypedRanges(resolvedRanges, baseRange.lowerEndpoint().getClass());
+
+ // Now verify if new ranges are strict subset of base ranges
+ if (!baseRangeSet.enclosesAll(typedRanges)) {
+ throw new InvalidRangeConstraintException(typedRanges,
+ "Range constraint %s is not a subset of parent constraint %s", typedRanges, baseRangeSet);
+ }
+
+ return new ResolvedRangeConstraint<>(constraint, typedRanges);
+ }
+
+ private static <C extends Number & Comparable<C>> List<ValueRange> ensureResolvedRanges(
+ final List<ValueRange> unresolved, final Range<C> baseRange) {
+ // First check if we need to resolve anything at all
+ for (ValueRange c : unresolved) {
+ if (c.lowerBound() instanceof UnresolvedNumber || c.upperBound() instanceof UnresolvedNumber) {
+ return resolveRanges(unresolved, baseRange);
+ }
+ }
+
+ // No need, just return the same list
+ return unresolved;
+ }
+
+ private static <T extends Number & Comparable<T>> List<ValueRange> resolveRanges(final List<ValueRange> unresolved,
+ final Range<T> baseRange) {
+ final List<ValueRange> ret = new ArrayList<>(unresolved.size());
+ for (ValueRange range : unresolved) {
+ final Number min = range.lowerBound();
+ final Number max = range.upperBound();
+
+ if (max instanceof UnresolvedNumber || min instanceof UnresolvedNumber) {
+ final @NonNull Number rMin = min instanceof UnresolvedNumber
+ ? ((UnresolvedNumber)min).resolveRange(baseRange) : min;
+ final @NonNull Number rMax = max instanceof UnresolvedNumber
+ ? ((UnresolvedNumber)max).resolveRange(baseRange) : max;
+ ret.add(ValueRange.of(rMin, rMax));
+ } else {
+ ret.add(range);
+ }
+ }
+
+ return ret;
+ }
+
+ @SuppressWarnings("unchecked")
+ private static <T extends Number & Comparable<T>> RangeSet<T> ensureTypedRanges(final List<ValueRange> ranges,
+ final Class<? extends Number> clazz) {
+ final Builder<T> builder = ImmutableRangeSet.builder();
+ for (ValueRange range : ranges) {
+ if (!clazz.isInstance(range.lowerBound()) || !clazz.isInstance(range.upperBound())) {
+ return typedRanges(ranges, clazz);
+ }
+
+ builder.add(Range.closed((T) range.lowerBound(), (T)range.upperBound()));
+ }
+
+ return builder.build();
+ }
+
+ @SuppressWarnings("unchecked")
+ private static <T extends Number & Comparable<T>> RangeSet<T> typedRanges(final List<ValueRange> ranges,
+ final Class<? extends Number> clazz) {
+ final Function<Number, ? extends Number> function = NumberUtil.converterTo(clazz);
+ Preconditions.checkArgument(function != null, "Unsupported range class %s", clazz);
+
+ final Builder<T> builder = ImmutableRangeSet.builder();
+
+ for (ValueRange range : ranges) {
+ if (!clazz.isInstance(range.lowerBound()) || !clazz.isInstance(range.upperBound())) {
+ final Number min;
+ final Number max;
+
+ try {
+ min = function.apply(range.lowerBound());
+ max = function.apply(range.upperBound());
+ } catch (NumberFormatException e) {
+ throw new IllegalArgumentException(String.format("Constraint %s does not fit into range of %s",
+ range, clazz.getSimpleName()), e);
+ }
+
+ builder.add(Range.closed((T)min, (T)max));
+ } else {
+ builder.add(Range.closed((T) range.lowerBound(), (T)range.upperBound()));
+ }
}
- // FIXME: calculate ranges
- throw new UnsupportedOperationException();
+ return builder.build();
}
}
Code Review / yangtools.git / blobdiff